Cooling system for automobile-engines



H. T. THOMAS. COOLING SYSTEM FOR AUTOMOBILE ENGINES APPLICATION FILED JULY 22, I9I8.

Patented Sept. 14, 1920.

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HORACE r. THOMAS,

OF LANSING, MICHIGAN.

COOLING SYSTEM FOR AUTOMOBILE-ENGINES.

Specification of Letters Patent.

Patented Sept. 14, 1920.

Application filed Ju1y 22, 1918. Serial No. 246,008.

To all whom it may concern:

Be it known that I, HORACE T. THOMAS, who am a citizen of the United States, residing at Lansing, county of Ingham, State of Michigan, have invented a certain new and useful Tm Jrovement in Cooling Systems for Automobile-Engines, and declare the following to be afull, clear, and tion of the same, such skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to'cooling systems for automobile engines and an object of my improvements is to economize the cooling water.

Tn the drawings- Figure 1 is an elevation of a part of a cooling system embodying my invention. 1 Fig. 2 is a plan view of the auxiliary tank, the walls of the same being partly broken away to'show the interior construction.

Fig. 3 is a transverse vertical section of the parts shown in Fig. 2.

a is a radiator of any conventional type as used upon an automobile. b is the filling spout extending from the top of the radiator 02. c is the wastepipe through which any water may overflow from the radiator, or

steam that may be generated in theradiator may be delivered below the same.

In my improved construction, I extend the pipe 0 at its lower endinto a coil 6 which has the inclined position shown in Fig. 3 so that any water in the pipe 0 may be delivered at the end of the pipe 6 which is at the lowest level. The'coil e is surrounded by a casing or tank d which I have shown of cylindrical form and provided with an overflow aperture (i which may also serve as an escape for steam and air and a drain cock (P. The upper end of the pipe 0 opens to the interior of the radiator in the construction shown into the spout b.

The operation of the above-described de vice is as follows:

The radiator being filled with the cooling liquid and the engine being started the liquid is expanded and flows from the pipe 0 and is delivered at the lower end 6 of said pipe and iscaught and retained by the tank d. Should exact descrip-- as will enable others it would overflow at (F.

steam subsequently be generated the steam will pass down through the pipe 0 and be condensed in the coil 6 and flow in the casing or tank d and the water beretained in said tank. The water in the tank at will eventually cover the coil 6 and assist in its cooling and the condensation of the steam which passes into and from said coil. Should more water flow into the tank 0? than it can contain When the engine is stopped the radiator a will cool off, the steam in the upper part of said radiator and the pipe 6 will be condensed forming a vacuum above the liquid in said radiator and the pressure of the outside atmosphere upon the liquid in the tank at will force said liquid back into the radiator and thus waste of the liquid will be avoided and the liquid will be automatically returned to the radiator."

The tank dis located below and-closely adjacent to the radiator where it is not liable to freeze. The waste pipe 0 leads through the interior of the radiator and has but a short length between where it issues from the radiator and where it enters the tank (Z.

The coil and connecting pipe are so arranged that water shall. not accumulate in any part thereof.

What I claim is:

l. The combination with a cooling system having a radiator, of a tank located below said radiator, a condenser within said tank opening to the interior of the same and a delivery pipe leading from the radiator above the normal level of liquid therein and communicating with said condenser, said tank being adapted to contain liquid surrounding said condenser and being provided with an escape for steam above the level of the li uid therein.

9;. he combination with a cooling system having a radiator, of a tank located below said radiator, a coil of pipe within said tank opening to the interior of the same and a delivery pipe leading from the radiator above the normal level of liquid therein and communicating with said coil of pipe, said tank being adapted to contain liquid surrounding said coil of pipe.

3. The combination with a cooling system having a radiator, of a tank located below said radiator, a coil of pipe having its convolutions in a plane with each other which is inclined to the horizontal, a delivery pipe leading from the radiator above the normal level of liquid therein, connecting with ihe upper portion of said coil, the lower end or" said coil opening to the tank toward the loottom thereof, said tank being adapted to contain liquid surrounding said coil of pipe, said pipe and coil being so arranged that water 10 shall not accumulate in any part thereof.

In testimony whereof I sign this specification.

HORACE T. THOMAS. 

